R
Roger Day
1958
8 works on record
Works

California mathematics

Texas mathematics

Glencoe Geometry

Indiana math connects

Oklahoma math connects

Math connects
An analysis of compliance with selected sanitary and phytosanitary measures in Eastern and Southern Africa
An analysis of compliance with selected sanitary and phytosanitary measures in Eastern and Southern Africa
Navigating through geometry in grades 9-12
Navigating through geometry in grades 9-12